Is there any sample code about cross activities from recyclerview to viewpager?

Recently I try to implement a cross activities demo. But I found that the ToActivity will flash at the moment it finished().
I use a SimpleTracker to generate ViewTransitionAnimator like:

`GestureTransitions.from(fromRecyclerView, fromTracker).into(viewPager, pagerTracker)`

only different is that fromRecyclerView is in FromActivity and viewPager in ToActivity.

I try to hide/show origin ImageView like your sample code but pageAdapter.getViewHolder always return null. I don't know how to do it.